What is anti-discriminatory practice? Using examples from value base show what values underpin this practice?

and how is anti discriminatory practice promoted in a social care setting. Thanks for any help you can provide. I am looking at past papers and am struggling a bit as I have just started the course. My exams are not until June. I have been looking at many sites relating to other things so I am not being lazy.|||One would be the much vaunted, and ballyhooed example of affirmative action. The Jury is still out as to whether it is necessary today.